Mitsubishi ML-G10
This page was last modified 08:19, 22 March 2022 by Mars2000you. Based on work by Gdx and Rderooy and others.




The ML-G10 is the first MSX2 computer released in Japan by Mitsubishi. It's a machine without any drive and with only 64Kb RAM.

This computer has been adapted for the Spanish market - see ML-G1. However, the additional interface was not released outside Japan.

Brand Mitsubishi
Model ML-G10
Year 1985-08-21
Region Japan
Launch price ¥98,000
RAM 64kB in slot 3-2
VRAM 128kB (64kB on mainboard + 64kB on VRAM expansion board)
Media MSX cartridges
Video Yamaha V9938
Audio PSG (YM2149 integrated in MSX-Engine S3527)
Chipset Yamaha S3527
Keyboard layout QWERTY/JIS + numeric keypad
Extras Reset button, graphic tool 'Hot Paper', (with ML-85AV interface) superimposition, digitize and Telop functions
Emulation ROMs dumped and emulated


The firmware is launched automatically when you boot the machine. Bypassing this software on startup requires the user to press the DEL key during boot until a Beep sound. You need also to press this key when a memory extension is inserted in this machine.

The built-in software is a graphic application in screen 7. Its name is 'Hot Paper". Some features are only working with the optional ML-85AV interface.



Mitsubishi ML-G10
Mitsubishi ML-G10 box
Mitsubishi ML-G10 right side
Mitsubishi ML-G10 inside
Mitsubishi ML-G10 mainboard
Mitsubishi ML-G10 video board
Mitsubishi ML-G10 underside
ML-G10 VRAM expansion board
Mitsubishi ML-G10 label
Mitsubishi ML-G10 back


Mitsubishi ML-G10 firmware


The ML-G10 is a MSX2 with two cartridge slots (top and rear) and one expansion bus. The CPU is a Z80A from NEC (D780C-1) and an MSX-Engine S3527 from Yamaha.

Half of the VRAM is on a separate board accessible through a trap-door under the machine.

You need the optional interface ML-85AV for superimposition, digitization and Telop functions.

Slot Map

Slot 0 Slot 1 Slot 2 Slot 3-0 Slot 3-1 Slot 3-2 Slot 3-3
Page C000h~FFFFh Cartridge
Slot 1
Slot 2
Page 8000h~BFFFh
Page 4000h~7FFFh Main-ROM Hot Paper
Page 0000h~3FFFh Sub-ROM